Method of binary encoding the points of a constellation used in a multicarrier modulation of OFDM type
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United States of America Patent
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Jul 12, 1994
Grant Date -
N/A
app pub date -
Oct 13, 1992
filing date -
Feb 12, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a method of binary encoding the N points of a constellation corresponding to the discrete positions, in amplitude and in phase, associated with the encoding of binary words in the case of a multicarrier modulation of OFDM type (Orthogonal Frequency Division Multiplexing) of a digitized signal. According to the method, two adjacent points of the constellation correspond to binary words which differ from one another by at most two bits. The present invention applies in particular to digital television.
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